PS6K / RPS6KB1 recombinant protein

Recombinant Human PS6K / RPS6KB1 Protein (GST tag)

Cat. Num. AAA2546532

• Gene Names: RPS6KB1; S6K; PS6K; S6K1; STK14A; p70-S6K; p70 S6KA; p70-alpha; S6K-beta-1; p70(S6K)-alpha
• Purity: > 90 % as determined by SDS-PAGE
• Synonyms: PS6K / RPS6KB1; Recombinant Human PS6K / RPS6KB1 Protein (GST tag); RPS6KB1; STK14A; PS6K / RPS6KB1 recombinant protein

• Host: Baculovirus-Insect Cells
• Purity/Purification: > 90 % as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile 20mM Tris, 500mM NaCl, pH 7.4, 10% gly, 1mM GSH
• Sequence Length: 502

• Application Notes: The recombinant human RPS6KB1 consists of 750 amino acids and predicts a molecular mass of 85.4 KDa. The apparent molecular mass of the protein is approximately 96 Kda in SDS-PAGE under reducing conditions due to glycosylation.
• Predicted N Terminal: Met
• Endotoxin: < 1.0 EU per mug of the protein as determined by the LAL method
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -70 degree C

SDS-PAGE

Related Product Information for PS6K / RPS6KB1 recombinant protein

Background: PS6K, also known as RPS6KB1, is a serine/threonine-protein kinase. It belongs to the RSK (ribosomal s6 kinase) family. Members of this family function in signal transduction. PS6K is an isoform of p70 ribosomal S6 kinase (S6K). S6K can be activated by mitogenic stimuli such as growth factors, insulin and cytokines. It phosphorylates the ribosomal protein S6. PS6K also phosphorylates other proteins such as elF4B, eEF2K and SKAR. It is a crucial effector of mTOR (rapamycin) signaling. PS6K is dissociated from the EIF3 complex and activated upon mitogenic stimulation, phosphorylation by the mammalian target of mTOR complex 1 (mTORC1). Its active form then phosphorylates and activates several substrates in the preinitiation complex, including the EIF2B complex and the cap-binding complex component EIF4B. PS6K also functions in cell proliferation, cell growth and cell cycle progression.

Description: A DNA sequence encoding the human RPS6KB1 (P23443-Alpha I) (Met1-Leu525) was fused with the GST tag at the N-terminus.

NCBI and Uniprot Product Information

• NCBI GI #: 440546395
• NCBI GeneID: 6198
• NCBI Accession #: NP_001258971.1
• NCBI GenBank Nucleotide #: NM_001272042.1
• UniProt Accession #: P23443; Q7Z721; B2R779; B4DLT4; B4DTG1; E7ESB8; F6UYM1
• Molecular Weight: 51,016 Da
• NCBI Official Full Name: ribosomal protein S6 kinase beta-1 isoform b
• NCBI Official Synonym Full Names: ribosomal protein S6 kinase B1
• NCBI Official Symbol: RPS6KB1
• NCBI Official Synonym Symbols: S6K; PS6K; S6K1; STK14A; p70-S6K; p70 S6KA; p70-alpha; S6K-beta-1; p70(S6K)-alpha
• NCBI Protein Information: ribosomal protein S6 kinase beta-1
• UniProt Protein Name: Ribosomal protein S6 kinase beta-1
• UniProt Gene Name: RPS6KB1
• UniProt Synonym Gene Names: STK14A; S6K-beta-1; S6K1; P70S6K1; p70-S6K 1; p70 S6 kinase alpha; p70 S6K-alpha; p70 S6KA

NCBI Description

This gene encodes a member of the ribosomal S6 kinase family of serine/threonine kinases. The encoded protein responds to mTOR (mammalian target of rapamycin) signaling to promote protein synthesis, cell growth, and cell proliferation. Activity of this gene has been associated with human cancer. Alternatively spliced transcript variants have been observed. The use of alternative translation start sites results in isoforms with longer or shorter N-termini which may differ in their subcellular localizations. There are two pseudogenes for this gene on chromosome 17. [provided by RefSeq, Jan 2013]

Uniprot Description

p70S6K: an AGC kinase of the RSK family that is required for cell growth and G1 cell cycle progression. Is phosphorylated and activated by mTOR in mitogenic pathways downstream of phosphoinositide 3 kinase (PI3K). Phosphorylates the S6 protein of the 40S ribosomal subunit and is involved in translational control of 5' oligopyrimidine tract mRNAs. Activity is controlled by multiple phosphorylation events located within the catalytic, linker and pseudosubstrate domains. Mouse knockout shows symptoms of insulin resistance, and increased insulin senstivity, resulting in protection against diet-induced obesity. Protein expression and activation upregulated in colon adenocarcinoma cell lines. Increased expression in breast cancer correlated with poor survival. Selectively amplified and overexpressed within the 17q23 breast cancer amplicon. Two isoforms produced by alternative initiation have been reported.

Protein type: AGC group; EC 2.7.11.1; Kinase, protein; Protein kinase, AGC; Protein kinase, Ser/Thr (non-receptor); RSK family; Translation; p70 subfamily

Chromosomal Location of Human Ortholog: 17q23.1

Cellular Component: cytosol; mitochondrion; nucleoplasm

Molecular Function: kinase activity; protein binding; protein kinase activity; protein serine/threonine/tyrosine kinase activity; ribosomal protein S6 kinase activity

Biological Process: G1/S transition of mitotic cell cycle; negative regulation of apoptosis; negative regulation of insulin receptor signaling pathway; phosphoinositide-mediated signaling; positive regulation of mitotic cell cycle; positive regulation of translation; positive regulation of translational initiation; signal transduction; TOR signaling pathway